Vehicle front bumper air dam exterior surface



FIG. 1 is a perspective view of a vehicle front bumper air dam exteriorsurface showing my new design, it being understood that the broken linesare for illustrative purposes only and form no part of the design; and,

FIG. 2 is a side elevation view thereof.

The ornamental design for a vehicle front bumper air dam exteriorsurface, as shown and described.